------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0xfff with flags 0x40
WARNING: CPU: 0 PID: 5243 at net/mac80211/rate.c:376 __rate_control_send_low+0x630/0x880 net/mac80211/rate.c:371
Modules linked in:
CPU: 0 PID: 5243 Comm: syz.6.169 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__rate_control_send_low+0x630/0x880 net/mac80211/rate.c:371
Code: 0f b6 04 28 84 c0 0f 85 e9 01 00 00 48 8b 44 24 08 8b 08 48 c7 c7 e0 74 39 8b 4c 89 f6 44 8b 44 24 14 45 89 f9 e8 b0 dd 69 00 <0f> 0b e9 72 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 08 fa ff
RSP: 0018:ffffc90000007788 EFLAGS: 00010246
RAX: 99b095557e777100 RBX: 000000000000000c RCX: ffff888029551dc0
RDX: 0000000000000100 RSI: 0000000000000101 RDI: 0000000000000000
RBP: 0000000000000084 R08: ffffc900000072a7 R09: 1ffff92000000e54
R10: dffffc0000000000 R11: fffff52000000e55 R12: ffff888022df4668
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000040
FS: 00007f2c720356c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000cf8030 CR3: 000000007d24e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rate_control_send_low+0x194/0x790 net/mac80211/rate.c:396
rate_control_get_rate+0x207/0x5c0 net/mac80211/rate.c:908
__ieee80211_beacon_get+0x155e/0x2000 net/mac80211/tx.c:5175
ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5202
ieee80211_beacon_get include/net/mac80211.h:4983 [inline]
mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812
__iterate_interfaces+0x243/0x500 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829
mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x4f2/0xb70 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
handle_softirqs+0x339/0x830 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__read_once_word_nocheck+0x0/0x10 include/asm-generic/rwonce.h:67
Code: 38 c1 0f 8c c6 fc ff ff 4c 89 e7 e8 3a fa 88 00 48 ba 00 00 00 00 00 fc ff df e9 af fc ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 <48> 8b 07 c3 00 00 cc cc 00 00 cc cc 00 00 cc cc 31 c0 81 ff 03 00
RSP: 0018:ffffc9000302eec0 EFLAGS: 00000246
RAX: ffffc9000302ff58 RBX: ffffc9000302ef88 RCX: ffffffff8dfc0801
RDX: ffffc9000302ff58 RSI: ffffffff8e99814a RDI: ffffc9000302fff0
RBP: ffffc9000302efd0 R08: 0000000000000004 R09: 000000000000000c
R10: dffffc0000000000 R11: fffff52000605dfd R12: 1ffffffff1d3302c
R13: dffffc0000000000 R14: ffffc90003028000 R15: 00007f2c73d9c04e
deref_stack_regs arch/x86/kernel/unwind_orc.c:376 [inline]
unwind_next_frame+0xe95/0x1d90 arch/x86/kernel/unwind_orc.c:552
arch_stack_walk+0x10c/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
save_stack+0x121/0x230 mm/page_owner.c:119
__set_page_owner+0x41/0x2d0 mm/page_owner.c:181
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1bbd/0x1ca0 mm/page_alloc.c:4192
__alloc_pages+0x1ee/0x480 mm/page_alloc.c:5501
alloc_pages_vma+0x393/0x7c0 mm/mempolicy.c:2146
shmem_alloc_page mm/shmem.c:1586 [inline]
shmem_alloc_and_acct_page+0x47f/0xbe0 mm/shmem.c:1611
shmem_getpage_gfp+0x14f4/0x2d40 mm/shmem.c:1906
shmem_getpage mm/shmem.c:151 [inline]
shmem_write_begin+0xcd/0x1a0 mm/shmem.c:2474
generic_perform_write+0x2b6/0x550 mm/filemap.c:3785
__generic_file_write_iter+0x25f/0x4e0 mm/filemap.c:3912
generic_file_write_iter+0xa6/0x1b0 mm/filemap.c:3944
call_write_iter include/linux/fs.h:2173 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0x745/0xd60 fs/read_write.c:594
ksys_write+0x152/0x260 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2c73d9c04e
Code: 08 0f 85 a5 a8 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 80 00 00 00 00 48 83 ec 08
RSP: 002b:00007f2c72034da8 EFLAGS: 00000246
ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f2c720356c0 RCX: 00007f2c73d9c04e
RDX: 00000000013bd7ef RSI: 00007f2c69c15000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003
R13: 00007f2c72034ee0 R14: 00007f2c72034ea0 R15: 00007f2c69c15000
----------------
Code disassembly (best guess):
0: 38 c1 cmp %al,%cl
2: 0f 8c c6 fc ff ff jl 0xfffffcce
8: 4c 89 e7 mov %r12,%rdi
b: e8 3a fa 88 00 call 0x88fa4a
10: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
17: fc ff df
1a: e9 af fc ff ff jmp 0xfffffcce
1f: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1)
26: 00 00 00
29: 90 nop
* 2a: 48 8b 07 mov (%rdi),%rax <-- trapping instruction
2d: c3 ret
2e: 00 00 add %al,(%rax)
30: cc int3
31: cc int3
32: 00 00 add %al,(%rax)
34: cc int3
35: cc int3
36: 00 00 add %al,(%rax)
38: cc int3
39: cc int3
3a: 31 c0 xor %eax,%eax
3c: 81 .byte 0x81
3d: ff 03 incl (%rbx)